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Finding the Fourth Proportional to 3,807.55, 5,258.54 and 2,615.67

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Solution

The fourth proportional to 3,807.55, 5,258.54 and 2,615.67 is: 3,612.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,807.55 : 5,258.54 = 2,615.67 : x
  2. Step 2: Convert to fraction form
    3,807.55/5,258.54 = 2,615.67/x
  3. Step 3: Cross multiply
    3,807.55x = 5,258.54 × 2,615.67
  4. Step 4: Simplify right side
    3,807.55x = 13,754,605.32
  5. Step 5: Solve for x
    x = 13,754,605.32/3,807.55
  6. Step 6: Final answer
    x = 3,612.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.